Air separator



Oct. 7, 1941.

Filed March 24, 1939 5 Sheets-Sheet 2 ,(66 o' '1m "m, .wl

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INVENTOR. Zaez @L7/"anwb mccf Gilmore ocr. 7, 1941. R. J. MUCH TAL AIRSEPARATOR Filed March 24, 1959 5 Sheets-Sheet 5- @zum Patented Oct. 7,1941 UNITED STATE AIR SEPARATOR y Robert J. Jauch and Samuel E. Gilmore,Fort 1 ors to The Wayne Pump Wayne, Ind., assign Company, Fort WayMarylandv ne, Ind.,` a'corporation ol? Application March 24, 1939,`Serial No. 264,012

claims. (ci. isa-2.5)

This invention pertains to liquid dispensing apparatus and moreparticularly to air separation and recovery means therefor.

It is an object of this invention to provide a liquid dispensingapparatus having an air .separator which is eiiicient in operationwherein high and low pressure chambers are 'provided for separation andrecovery purposes.

Another object is to provide air separating means which only operates tovent the separated air to atmosphere after a predetermined pressure isbuilt up in the separator.

Yet another object is to provide air separating means and recovery meanstherefor which isonly effective after the pump is pumping solid liquid..

Still another object is to provide means for positively removingrecovered liquid iroman air separator. 1

A further object is to provide air separating means which is soconstructed and arranged that liquid cannotbe ejected' therefrom underany conditions. l I Y With these and various other objects in view, theinvention may consist of certain novel fea' tures of construction andoperation as lwill be more fully described and particularly pointed outin the specification, drawings and claims `ap-` pended hereto. I

In the drawings, which illustrate an embodiment of the device andwherein like reference characters Vare used to designate like parts-Figure 1 is an eleva-tion, partly in section, of a liquid dispensingapparatus embodying the invention;

Figure 2 is in section, of the liquid dispensing apparatus` illustratedin Figure l, the same looking toward the left as viewed in said figure;l

Figur-'e 3 is an enlarged sectional elevation of the pump and airseparator shown in Figures' 1 and 2;

Figure 4 is an enlarged top planr view of the pump shown in Figure-3;

Figure 5 is an enlarged sectional elevation of the pump illustrated inFigure '4;

Figure 6 is an enlarged sectional top plan View taken through the pumpcontrol valve mechanism for the air separator;

Figure 'l is an enlarged sectional elevation taken substantially in theplane as indicated by the line 1--1 of Figure 6.

In the liquid dispensing apparatus shown, the base I0 provides a supportfor the casing I2 within which the pump I4 is supported, said pump beingof the positive displacement rotary type a fragmentary side elevation,partly provided with the inlet I6 adapted to be con` nected to. a sourceof` liquid supply (not showni. The outlet or pressure side of the pumpis connected through the pipe l8 to theinlet Ztl-of the air separatorA22, said air separator being provided with the vent 24 extending to andvvented to atmosphere at 'a point high in the pump'casing; The outlet 26of the 'air separator isconnected to the inlet side 28 of the meter'S'I)shown'as of the positive displacementA type'. Said meter is'V providedwith the meter shaft 32 adapted to be con-- nected and operate a`registering and computing mechanism 34 which may be as shown 'in PatentN'o.`2,151,239, Slye et al., granted March 21, 1939.

The register of said registering mechanism is adapted to Aberesetthroughthe reset shaft 36 by means "of `the crankA 38, an extension `oi?said reset shaft being provided with the `interlock mechanism 40 forpreventing dispensing `until the register has been reset to zerosubsequent to each dispensing operation. The outlet side of the meter 30isrconnect'ed to the upwardly extending pipe 42 whereby liquid issupplied to the sight gauge 44 whichinay beof the type such as showniii-Patent No. 2,157,087, Jauch et al., granted May 2, 1939. Theoutletsideofthe sight gauge 44 is connected to the pipe 46 to which thehose 48 is connected. The opposite end oi the hose is con.. nected tothe nozzle 50 controlled by the nozzle valve 5,2,said vnozzle valve 5'2being adapted to be operated by means of the lever 54 pivoted as at56`within the guard 5B. The guard 58 is adapted to providea support forthe nozzle on the fixed support 6I),4 and when in supported position thenozzle` and lever are so arranged that the nozzle valve cannot beoperated. i f

When in inoperative position the nozzle is Aalso supported so that theend thereof projects into a boot (not shown) whereby the end of thenozzle is not accessible until the nozzle is removed from its: AsupportilAguard lever 62 is pivoted on `the casing as 'at' 63 and is adapted tooverlie the' pushbutton '6'4disposed above `the fixed support; thepushbutton upon being moved inwardly by placing the. .nozzle on thehook, or manually, causing the'bell'crank 66 to be moved inacounterclockwise ldirection about the pivot 68 to depress the'switchrod 10, said rod being connected to the v switchf'IZ of the motor 14 tomove the switch to open position when the rod is depressed.

The motor 'is provided with 'the pulley l1li adapted tooperate the pumpI4 by movement of the belt 18 which also engages the pump pui"- ley 8U;The bell crank 66 is likewise adapted to be moved by the pushbutton 8.2disposed beshown as a positive displacement pump and is provided withthe inlet chamber 86 in direct com'- munication with the inlet |6. Theinlet chamber 86 is in communication with the suction chamber 38 throughthe removable screen or lter 90 and a rotor 92 is provided on theoperating shaft 94 on which the pulley 80 is disposed. The rotor 92 isdisposed between the suction chamber 88 and the pressure chamber 96which is in communication with the pipe 8. 'Ihe shaft |14V is providedwith the spaced bearings 38 and |00 and the pump housing adjacent oneend is closed as at |02, and the opposite end of the shaft passesthrough a suitable stulhng box |04 for attachment to the pulley 80.

The valve housing |06 is disposed on the pump housing and said valvehousing is provided with the connection |08 to the pump suction, andprovided with the connection to the pump discharge. The connection |08communicates with the valve recess I 2 in which the sleeve valve |4 is.slidably mounted, said sleeve valve being provided with the circulardepression 8 and the axial channel |20, said channel communicating withthe piston housing |22 through theports |24 whereby the pump suction isin communication with one side of the piston |26. The piston |26 isconnected to the sleeve valve stem as at |28 and is provided with theleathers |30 spring pressed as at |32, the springs being held by meansof the retainer |34, said piston being normally urged toward the pumpdischarge by means of the spring |36, 'the stop |38 on the closure |40limiting the movement of the piston. The piston thus is adapted to beacted upon by the pump pressure and the pump suction. The housing isprovided with the aperture |42 which is in communication as at |44 withthe return |46. The aperture |42 is adapted to connect the return |46 tothe pump suction through suitable radial apertures |48 disposed aroundthe depressed portion ||8 of the sleeve valve, the channel |20 and theconnection |08. The pump is also provided With the by-pass valve |50normally urged to closed position by means of the spring |52, saidby-pass valve being adapted to open at a predetermined pressure toby-pass the liquid within the pump casing.

The air separator 22 consists essentially of the receiving or highpressure chamber |54 provided withy said inlet and said outlet 26, asuitable baillev |56 being provided for directing the liquid in alpredetermined path. The chamber is providedwith a restricted opening |58'disposed adjacent the top thereof, said opening being in communicationwith the low pressure, oat or recovery chamber |60, said chamber beingclosed by means of the cap |62. The cap-|62 is provided vwith the valve|64 normally closed by means of the spring |66, the valve controllingthe exhaust from the float chamber |60 to the vent pipe 24, the springbeing set ata predetermined pressure so that the valve is Yonly openedafter a predetermined pressure is built up in the float chamber wherebythe vapor passing over into the float chamber will precipitate theliquid in said oat chamber. The lever |68 is pivoted as at |10 to thesupport |14, and a valve |16 is provided for closing the restrictedopening after a predetermined liquid level is reached in the chamber|60. The float |18 is pivoted as at |80 to the lever for controllingmovement thereof as determined by the liquid level in the float chamber.The float may be provided with the guide lrod |82 suitably guided as at|84 for insuring the proper vertical movement of said float. Therecovery line |46 is connected as at |86 to the float chamber andextends to and is connected to the valve housing |06 as alreadydescribed.

In the operation of this form of the device, when it is desired todispense liquid, the hose nozzle 50 is removed from the support 60. Thebutton 02 is moved inwardly, assuming the register to have been set tozero position, starting the motor. The motor will cause operation of thepump `to supply liquid to the air separator, the liquid passing throughthe air separator into the meter and outwardly of the discharge line 42,sight gauge 44, line 46, hose 48, and through the nozzle 50, it beingassumed that the nozzle valve 52 is opened.

The liquid supplied to the high pressure chamber |54 of the airseparator will receive a swirling motion releasing any entrained air orvapor which will pass through the restricted opening 58. The liquidentrained in the vapor will be deposited in the recovery chamber |60,and the liquid level will rise as the sleeve` valve ||4 will be closedso long as any air is being pumped.

' When the pump is pumping solid liquid the suction acting on the leftside of the piston |26,'in addition the pressure of the pump acting onthe opposite side of the piston |26, will cause the piston to be movedtoward the left as viewed in Figure 6, which in turn will cause thedepressed portion 8 and the apertures 48 to registerY with the opening|42, permitting liquid to be recovered from the chamber |60 to thesuction side of the PUJIIP- After the predetermined amount of liquid istrapped in the recovery chamber, and in the event the liquid is notexhausted quickly enough, as for example, where there is a surge ofliquid into the recovery chamber, the float will'cause the valve |16 toclose, thus preventing liquid from being ejected through the vent tube24. After a predetermined pressure has been* built up in the recoverychamber |60 the valve |64 will open to exhaust the air to theatmosphere, the pressure previously built up in the float chamberinsuring that all the liquid will be pre-l cipitated for recoverypurposes. The valve |64 being a normally closedvalve will prevent airfrom the atmosphere being received into the pump, and with thearrangement of the valves |16, 64 and ||4, a device is provided which isequally eifectiver on any lifts.

It is to be understood that we do not wish to be limited by the exactembodiment of the device shown, which is merely by way of illustrationand not limitation, as various and other forms of the device will ofcourse be apparent to those skilled in the art without departing fromthe spirit of the invention or the scope of the claims.

What is claimed is:

1. In combination, a pump having a suction side and a pressure side, theinlet being on said suction side and being adapted to be connected to asource of liquid supply,` the outlet being on the pressure side, an airseparator having a main and secondary chamber, said main chamber havingan inlet and an outlet, said last named inlet being connected to theoutlet of said pump, a connection between said main and secondarychambers including a restricted opening, a valve in said secondarychamber for controlling said opening, a iioat for said valve in saidsecondary chamber for closing said valve after a predetermined amount ofliquid is contained in said secondary chamber, a vent to the atmospherefrom said secondary chamber, a predetermined pressure set valvecontrolling said vent, and means for controlling discharge from saidsecondary chamber.

2. In combination, a pump having a suction side and a pressure side, theinlet being on said suction side and being adapted to be connected to asource of liquid supply, the outlet being on the pressure side, an airseparator having a main and secondary chamber, said main chamber havingan inlet and an outlet, said last named inlet being connected to theoutlet of said pump, a connection between said main and secondarychambers including a restricted opening, a valve in said secondarychamber for controlling said opening, a float for said valve in saidsecondary chamber for closing said valve after a predetermined amount oiliquid is contained in said secondary chamber, a vent to the atmospherefrom said secondary chamber, a predetermined pressure set valvecontrolling said vent, means for controlling discharge from saidsecondary chamber, said last named means including valve mechanismprovided on said pump having a suction connection to the suction side ofsaid pump, a valve for controlling said suction connection, meansassociated with said last named valve and in communication with thesuction and pressure sides of said pump, said last named means beingmoved by the suction and pressure when the pump is pumping solid liquidto open said last named valve, and a connection between said suctionconnection and said secondary chamber for returning liquid to thesuction side of said pump when said last named valve is opened.

3. In combination, a pump having a suction side and a pressure side, theinlet being on said suction side and being adapted to be connected to asource of liquid supply, the outlet being on the pressure side, an airseparator having a main and secondary chamber, said main chamber havingan inlet and an outlet, said last named inlet being connect-ed to theoutlet of said pump, a connection between said main and secondarychambers including an opening, a valve controlling said opening, saidvalve being controlled by liquid supplied to said secondary chamber, avent to atmosphere from said secondary chamber,

a discharge` from said secondary chamber connected to said pump, apredetermined pressure set valve controlling said vent, and valvemechanism controlled by said pump for controlling said discharge.

4. In combination, a pump having a suction side and a pressure side, theinlet being on said suction side and being adapted to be connected to asource of liquid supply, the outlet being on the pressure side, an` airseparator having a main and secondary chamber, said main chamber havingan inlet and an outlet, said last named inlet being connected to theoutlet of said pump, a connection between said main and secondarychambers including a restricted opening, a valve in said secondarychamber for controlling said opening, means responsive to the level ofliquid in said secondary chamber for closing said valve after apredetermined amount of liquid is contained in said secondary chamber, avent to the atmosphere from said secondary chamber, a predeterminedpressure set valve controlling said vent, and means for controllingdischarge from said secondary chamber.

5. In combination, a pump having a suction side and a pressure side, theinlet being on said suction side and being adapted to be connected to asource of liquid supply, the outlet being on the pressure side, an airseparator having a main and secondary chamber, said main chamber havingan inlet and an outlet, said last named inlet being connected to theoutlet of said pump, a connection between said main and secondarychambers including a restricted opening, a valve in said secondarychamber for controlling said opening, means responsive to the level ofliquid in said secondary chamber for closing said valve after apredetermined amount of liquid is contained in said secondary chamber, avent to the atmosphere from said secondary chamber, a predeterminedpressure set valve controlling said vent, means for controllingdischarge from said secondary chamber, said last named means includingvalve mechanism provided on said pump having a suction connection to thesuction side of said pump, a valve for controlling said suctionconnection, means associated with said last named valve and incommunication with the suction and pressure sides of said pump, saidlast named means being moved by the suction and pressure when the pumpis pumping solid liquid to open said last named valve, and a connectionbetween said suction connection and said secondary chamber for returningliquid to the suction side of said pump when said last named valve isopened.

ROBERT J. JAUCH. SAMUEL E. GILMORE.

